Purdy AND3222MST-LEDW User Manual
Displays
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
5/1/08
Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected]
1
www.purdyelectronics.com
Displays
AND3222MST-LEDW
6” FSTN LCD Module
The AND3222MST-LEDW display is a compact, full dot matrix,
which is an STN gray positive LCD type, transflective rear
polarizer with a yellow green backlight color. The AND3222MST-
LEDW can display TEXT information, numerals, letters and
symbols, as well as GRAPHIC patterns. These devices are
suitable for medical and measurement equipment, point-of-sale
terminals, protable equipment, and marine instrumentation.
Features
• STN Gray Positive LCD type
• Built-in LED yellow green backlight
• Excellent readability and high-contrast ratio
• 320 (W) x 240 (H) dot graphic display
• Wide operating temperature range (-20 to +70 ºC)
• Transflective rear polarizer
• 6 o’clock viewing angle
•
RoHS Compliant
Mechanical Characteristics
Item
Specification
Unit
Outline
Dimensions
148.0 (W) x 120.2 (H) x 20.5 max (D)
mm
Number of
Pixels
320 (W) x 240 (H)
pixels
Active Area
120.14 (W) x 92.14 (H)
mm
Pixel Size
0.33 (W) x 0.33 (H)
mm
Pixel Pitch
0.36 (W) x 0.36 (H)
mm
Duty Ratio
1/240
duty
Controller
SID13305
–
DC/DC Converter
With
–
Absolute Maximum Ratings - Electrical
Item
Symbol
Min.
Max.
Unit
Power Supply for Logic
V
DD
- V
SS
-0.3
7.0
V
Power Supply for LCD Driver
V
DD
- V
LCD
0
30.0
V
Input Voltage
V
I
-0.3
V
DD
V
LED Power Dissipation
P
AD
–
1242
mW
LED Forward Current
I
AF
–
270
mA
LED Reverse Voltage
V
R
8
V
Electrical Characteristics (Ta = 25°C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Power
Supply for
Logic
V
DD -
V
SS
–
4.5
5.0
5.5
V
Power
Supply for
LCD Drive
V
LCD -
V
SS
–
-21.6
-22.1
-22.7
V
Input
Voltage
V
IL
L Level
0
–
0.6
V
V
IH
H Level
2.2
–
V
DD
V
V
DD -
V
O
Ta = 0ºC
–
22.7
–
V
Ta = 25ºC
–
24.3
–
V
Ta = 50ºC
–
25.8
–
V
Logic
Supply
Current
I
DD
V
DD
=5.0V
V
DD -
V
O
=
24.3V
34.9
31.3
–
mA
I
EE
–
3.6
–
LED
Forward
Voltage
V
F
If = 180 mA
–
4.2
4.6
V
LED
Forward
Current
I
F
–
–
180
–
mA
LED
Reverse
Current
I
R
VR = 8V
–
–
0.3
mA
Product specifications contained herein may be changed without prior notice. It is therefore advisable to contact Purdy
Electronics before proceeding with the design of equipment incorporating this product.